1 /* $NetBSD: machdep.c,v 1.85 2003/01/18 07:03:37 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1988 University of Utah. 5 * Copyright (c) 1982, 1986, 1990, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * the Systems Programming Group of the University of Utah Computer 10 * Science Department. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the University of 23 * California, Berkeley and its contributors. 24 * 4. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * from: Utah Hdr: machdep.c 1.74 92/12/20 41 * from: @(#)machdep.c 8.10 (Berkeley) 4/20/94 42 */ 43 44 #include "opt_ddb.h" 45 #include "opt_kgdb.h" 46 47 #include <sys/param.h> 48 #include <sys/systm.h> 49 #include <sys/kernel.h> 50 #include <sys/proc.h> 51 #include <sys/buf.h> 52 #include <sys/reboot.h> 53 #include <sys/conf.h> 54 #include <sys/file.h> 55 #include <sys/device.h> 56 #include <sys/malloc.h> 57 #include <sys/mbuf.h> 58 #include <sys/msgbuf.h> 59 #include <sys/ioctl.h> 60 #include <sys/tty.h> 61 #include <sys/mount.h> 62 #include <sys/user.h> 63 #include <sys/exec.h> 64 #include <sys/core.h> 65 #include <sys/kcore.h> 66 #include <sys/vnode.h> 67 #include <sys/sa.h> 68 #include <sys/syscallargs.h> 69 #ifdef KGDB 70 #include <sys/kgdb.h> 71 #endif 72 73 #include <uvm/uvm_extern.h> 74 75 #include <sys/sysctl.h> 76 77 #include <dev/cons.h> 78 79 #include <machine/cpu.h> 80 #include <machine/dvma.h> 81 #include <machine/idprom.h> 82 #include <machine/kcore.h> 83 #include <machine/reg.h> 84 #include <machine/psl.h> 85 #include <machine/pte.h> 86 87 #if defined(DDB) 88 #include <machine/db_machdep.h> 89 #include <ddb/db_sym.h> 90 #include <ddb/db_extern.h> 91 #endif 92 93 #include <sun3/sun3/machdep.h> 94 95 /* Defined in locore.s */ 96 extern char kernel_text[]; 97 /* Defined by the linker */ 98 extern char etext[]; 99 100 /* Our exported CPU info; we can have only one. */ 101 struct cpu_info cpu_info_store; 102 103 struct vm_map *exec_map = NULL; 104 struct vm_map *mb_map = NULL; 105 struct vm_map *phys_map = NULL; 106 107 int physmem; 108 int fputype; 109 caddr_t msgbufaddr; 110 111 /* Virtual page frame for /dev/mem (see mem.c) */ 112 vaddr_t vmmap; 113 114 union sun3sir sun3sir; 115 116 /* 117 * safepri is a safe priority for sleep to set for a spin-wait 118 * during autoconfiguration or after a panic. 119 */ 120 int safepri = PSL_LOWIPL; 121 122 u_char cpu_machine_id = 0; 123 char *cpu_string = NULL; 124 int cpu_has_vme = 0; 125 int has_iocache = 0; 126 127 vaddr_t dumppage; 128 129 static void identifycpu __P((void)); 130 static void initcpu __P((void)); 131 132 /* 133 * Console initialization: called early on from main, 134 * before vm init or cpu_startup. This system is able 135 * to use the console for output immediately (via PROM) 136 * but can not use it for input until after this point. 137 */ 138 void 139 consinit() 140 { 141 142 /* 143 * Switch from the PROM console (output only) 144 * to our own console driver. 145 */ 146 cninit(); 147 148 #ifdef DDB 149 { 150 extern int nsym; 151 extern char *ssym, *esym; 152 153 ddb_init(nsym, ssym, esym); 154 } 155 #endif /* DDB */ 156 157 /* 158 * Now that the console can do input as well as 159 * output, consider stopping for a debugger. 160 */ 161 if (boothowto & RB_KDB) { 162 #ifdef KGDB 163 /* XXX - Ask on console for kgdb_dev? */ 164 /* Note: this will just return if kgdb_dev==NODEV */ 165 kgdb_connect(1); 166 #else /* KGDB */ 167 /* Either DDB or no debugger (just PROM). */ 168 Debugger(); 169 #endif /* KGDB */ 170 } 171 } 172 173 /* 174 * cpu_startup: allocate memory for variable-sized tables, 175 * initialize cpu, and do autoconfiguration. 176 * 177 * This is called early in init_main.c:main(), after the 178 * kernel memory allocator is ready for use, but before 179 * the creation of processes 1,2, and mountroot, etc. 180 */ 181 void 182 cpu_startup() 183 { 184 caddr_t v; 185 vsize_t size; 186 int sz, i, base, residual; 187 vaddr_t minaddr, maxaddr; 188 char pbuf[9]; 189 190 if (fputype != FPU_NONE) 191 m68k_make_fpu_idle_frame(); 192 193 /* 194 * Initialize message buffer (for kernel printf). 195 * This is put in physical page zero so it will 196 * always be in the same place after a reboot. 197 * Its mapping was prepared in pmap_bootstrap(). 198 * Also, offset some to avoid PROM scribbles. 199 */ 200 v = (caddr_t) KERNBASE; 201 msgbufaddr = (caddr_t)(v + MSGBUFOFF); 202 initmsgbuf(msgbufaddr, MSGBUFSIZE); 203 204 /* 205 * Good {morning,afternoon,evening,night}. 206 */ 207 printf(version); 208 identifycpu(); 209 initfpu(); /* also prints FPU type */ 210 211 format_bytes(pbuf, sizeof(pbuf), ctob(physmem)); 212 printf("total memory = %s\n", pbuf); 213 214 /* 215 * Get scratch page for dumpsys(). 216 */ 217 if ((dumppage = uvm_km_alloc(kernel_map, NBPG)) == 0) 218 panic("startup: alloc dumppage"); 219 220 /* 221 * Find out how much space we need, allocate it, 222 * and then give everything true virtual addresses. 223 */ 224 sz = (u_int)allocsys(NULL, NULL); 225 if ((v = (caddr_t)uvm_km_alloc(kernel_map, round_page(sz))) == 0) 226 panic("startup: no room for tables"); 227 if (allocsys(v, NULL) - v != sz) 228 panic("startup: table size inconsistency"); 229 230 /* 231 * Now allocate buffers proper. They are different than the above 232 * in that they usually occupy more virtual memory than physical. 233 */ 234 size = MAXBSIZE * nbuf; 235 if (uvm_map(kernel_map, (vaddr_t *) &buffers, round_page(size), 236 NULL, UVM_UNKNOWN_OFFSET, 0, 237 UVM_MAPFLAG(UVM_PROT_NONE, UVM_PROT_NONE, UVM_INH_NONE, 238 UVM_ADV_NORMAL, 0)) != 0) 239 panic("startup: cannot allocate VM for buffers"); 240 minaddr = (vaddr_t)buffers; 241 if ((bufpages / nbuf) >= btoc(MAXBSIZE)) { 242 /* don't want to alloc more physical mem than needed */ 243 bufpages = btoc(MAXBSIZE) * nbuf; 244 } 245 base = bufpages / nbuf; 246 residual = bufpages % nbuf; 247 for (i = 0; i < nbuf; i++) { 248 vsize_t curbufsize; 249 vaddr_t curbuf; 250 struct vm_page *pg; 251 252 /* 253 * Each buffer has MAXBSIZE bytes of VM space allocated. Of 254 * that MAXBSIZE space, we allocate and map (base+1) pages 255 * for the first "residual" buffers, and then we allocate 256 * "base" pages for the rest. 257 */ 258 curbuf = (vaddr_t) buffers + (i * MAXBSIZE); 259 curbufsize = NBPG * ((i < residual) ? (base+1) : base); 260 261 while (curbufsize) { 262 pg = uvm_pagealloc(NULL, 0, NULL, 0); 263 if (pg == NULL) 264 panic("cpu_startup: not enough memory for " 265 "buffer cache"); 266 pmap_kenter_pa(curbuf, VM_PAGE_TO_PHYS(pg), 267 VM_PROT_READ|VM_PROT_WRITE); 268 curbuf += PAGE_SIZE; 269 curbufsize -= PAGE_SIZE; 270 } 271 } 272 pmap_update(pmap_kernel()); 273 274 /* 275 * Allocate a submap for exec arguments. This map effectively 276 * limits the number of processes exec'ing at any time. 277 */ 278 exec_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr, 279 16*NCARGS, VM_MAP_PAGEABLE, FALSE, NULL); 280 281 /* 282 * Allocate a submap for physio 283 */ 284 phys_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr, 285 VM_PHYS_SIZE, 0, FALSE, NULL); 286 287 /* 288 * Finally, allocate mbuf cluster submap. 289 */ 290 mb_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr, 291 nmbclusters * mclbytes, VM_MAP_INTRSAFE, 292 FALSE, NULL); 293 294 format_bytes(pbuf, sizeof(pbuf), ptoa(uvmexp.free)); 295 printf("avail memory = %s\n", pbuf); 296 format_bytes(pbuf, sizeof(pbuf), bufpages * NBPG); 297 printf("using %u buffers containing %s of memory\n", nbuf, pbuf); 298 299 /* 300 * Allocate a virtual page (for use by /dev/mem) 301 * This page is handed to pmap_enter() therefore 302 * it has to be in the normal kernel VA range. 303 */ 304 vmmap = uvm_km_valloc_wait(kernel_map, NBPG); 305 306 /* 307 * Create the DVMA maps. 308 */ 309 dvma_init(); 310 311 /* 312 * Set up CPU-specific registers, cache, etc. 313 */ 314 initcpu(); 315 316 /* 317 * Set up buffers, so they can be used to read disk labels. 318 */ 319 bufinit(); 320 } 321 322 /* 323 * Set registers on exec. 324 */ 325 void 326 setregs(l, pack, stack) 327 struct lwp *l; 328 struct exec_package *pack; 329 u_long stack; 330 { 331 struct trapframe *tf = (struct trapframe *)l->l_md.md_regs; 332 333 tf->tf_sr = PSL_USERSET; 334 tf->tf_pc = pack->ep_entry & ~1; 335 tf->tf_regs[D0] = 0; 336 tf->tf_regs[D1] = 0; 337 tf->tf_regs[D2] = 0; 338 tf->tf_regs[D3] = 0; 339 tf->tf_regs[D4] = 0; 340 tf->tf_regs[D5] = 0; 341 tf->tf_regs[D6] = 0; 342 tf->tf_regs[D7] = 0; 343 tf->tf_regs[A0] = 0; 344 tf->tf_regs[A1] = 0; 345 tf->tf_regs[A2] = (int)l->l_proc->p_psstr; 346 tf->tf_regs[A3] = 0; 347 tf->tf_regs[A4] = 0; 348 tf->tf_regs[A5] = 0; 349 tf->tf_regs[A6] = 0; 350 tf->tf_regs[SP] = stack; 351 352 /* restore a null state frame */ 353 l->l_addr->u_pcb.pcb_fpregs.fpf_null = 0; 354 if (fputype) 355 m68881_restore(&l->l_addr->u_pcb.pcb_fpregs); 356 357 l->l_md.md_flags = 0; 358 } 359 360 /* 361 * Info for CTL_HW 362 */ 363 char machine[16] = MACHINE; /* from <machine/param.h> */ 364 char kernel_arch[16] = "sun3x"; /* XXX needs a sysctl node */ 365 char cpu_model[120]; 366 367 /* 368 * XXX - Should empirically estimate the divisor... 369 * Note that the value of delay_divisor is roughly 370 * 2048 / cpuclock (where cpuclock is in MHz). 371 */ 372 int delay_divisor = 62; /* assume the fastest (33 MHz) */ 373 374 void 375 identifycpu() 376 { 377 u_char machtype; 378 379 machtype = identity_prom.idp_machtype; 380 if ((machtype & IDM_ARCH_MASK) != IDM_ARCH_SUN3X) { 381 printf("Bad IDPROM arch!\n"); 382 sunmon_abort(); 383 } 384 385 cpu_machine_id = machtype; 386 switch (cpu_machine_id) { 387 388 case SUN3X_MACH_80: 389 cpu_string = "80"; /* Hydra */ 390 delay_divisor = 102; /* 20 MHz */ 391 cpu_has_vme = FALSE; 392 break; 393 394 case SUN3X_MACH_470: 395 cpu_string = "470"; /* Pegasus */ 396 delay_divisor = 62; /* 33 MHz */ 397 cpu_has_vme = TRUE; 398 break; 399 400 default: 401 printf("unknown sun3x model\n"); 402 sunmon_abort(); 403 } 404 405 /* Other stuff? (VAC, mc6888x version, etc.) */ 406 /* Note: miniroot cares about the kernel_arch part. */ 407 sprintf(cpu_model, "%s %s", kernel_arch, cpu_string); 408 409 printf("Model: %s\n", cpu_model); 410 } 411 412 /* 413 * machine dependent system variables. 414 */ 415 int 416 cpu_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) 417 int *name; 418 u_int namelen; 419 void *oldp; 420 size_t *oldlenp; 421 void *newp; 422 size_t newlen; 423 struct proc *p; 424 { 425 int error; 426 dev_t consdev; 427 428 /* all sysctl names at this level are terminal */ 429 if (namelen != 1) 430 return (ENOTDIR); /* overloaded */ 431 432 switch (name[0]) { 433 case CPU_CONSDEV: 434 if (cn_tab != NULL) 435 consdev = cn_tab->cn_dev; 436 else 437 consdev = NODEV; 438 error = sysctl_rdstruct(oldp, oldlenp, newp, 439 &consdev, sizeof consdev); 440 break; 441 442 #if 0 /* XXX - Not yet... */ 443 case CPU_ROOT_DEVICE: 444 error = sysctl_rdstring(oldp, oldlenp, newp, root_device); 445 break; 446 447 case CPU_BOOTED_KERNEL: 448 error = sysctl_rdstring(oldp, oldlenp, newp, booted_kernel); 449 break; 450 #endif 451 452 default: 453 error = EOPNOTSUPP; 454 } 455 return (error); 456 } 457 458 /* See: sig_machdep.c */ 459 460 /* 461 * Do a sync in preparation for a reboot. 462 * XXX - This could probably be common code. 463 * XXX - And now, most of it is in vfs_shutdown() 464 * XXX - Put waittime checks in there too? 465 */ 466 int waittime = -1; /* XXX - Who else looks at this? -gwr */ 467 static void 468 reboot_sync __P((void)) 469 { 470 471 /* Check waittime here to localize its use to this function. */ 472 if (waittime >= 0) 473 return; 474 waittime = 0; 475 vfs_shutdown(); 476 } 477 478 /* 479 * Common part of the BSD and SunOS reboot system calls. 480 */ 481 __dead void 482 cpu_reboot(howto, user_boot_string) 483 int howto; 484 char *user_boot_string; 485 { 486 /* Note: this string MUST be static! */ 487 static char bootstr[128]; 488 char *p; 489 490 /* If system is cold, just halt. (early panic?) */ 491 if (cold) 492 goto haltsys; 493 494 /* Un-blank the screen if appropriate. */ 495 cnpollc(1); 496 497 if ((howto & RB_NOSYNC) == 0) { 498 reboot_sync(); 499 /* 500 * If we've been adjusting the clock, the todr 501 * will be out of synch; adjust it now. 502 * 503 * XXX - However, if the kernel has been sitting in ddb, 504 * the time will be way off, so don't set the HW clock! 505 * XXX - Should do sanity check against HW clock. -gwr 506 */ 507 /* resettodr(); */ 508 } 509 510 /* Disable interrupts. */ 511 splhigh(); 512 513 /* Write out a crash dump if asked. */ 514 if (howto & RB_DUMP) 515 dumpsys(); 516 517 /* run any shutdown hooks */ 518 doshutdownhooks(); 519 520 if (howto & RB_HALT) { 521 haltsys: 522 printf("halted.\n"); 523 sunmon_halt(); 524 } 525 526 /* 527 * Automatic reboot. 528 */ 529 if (user_boot_string) 530 strncpy(bootstr, user_boot_string, sizeof(bootstr)); 531 else { 532 /* 533 * Build our own boot string with an empty 534 * boot device/file and (maybe) some flags. 535 * The PROM will supply the device/file name. 536 */ 537 p = bootstr; 538 *p = '\0'; 539 if (howto & (RB_KDB|RB_ASKNAME|RB_SINGLE)) { 540 /* Append the boot flags. */ 541 *p++ = ' '; 542 *p++ = '-'; 543 if (howto & RB_KDB) 544 *p++ = 'd'; 545 if (howto & RB_ASKNAME) 546 *p++ = 'a'; 547 if (howto & RB_SINGLE) 548 *p++ = 's'; 549 *p = '\0'; 550 } 551 } 552 printf("rebooting...\n"); 553 sunmon_reboot(bootstr); 554 for (;;) ; 555 /*NOTREACHED*/ 556 } 557 558 /* 559 * These variables are needed by /sbin/savecore 560 */ 561 u_int32_t dumpmag = 0x8fca0101; /* magic number */ 562 int dumpsize = 0; /* pages */ 563 long dumplo = 0; /* blocks */ 564 565 #define DUMP_EXTRA 1 /* CPU-dependent extra pages */ 566 567 /* 568 * This is called by main to set dumplo, dumpsize. 569 * Dumps always skip the first NBPG of disk space 570 * in case there might be a disk label stored there. 571 * If there is extra space, put dump at the end to 572 * reduce the chance that swapping trashes it. 573 */ 574 void 575 cpu_dumpconf() 576 { 577 const struct bdevsw *bdev; 578 int devblks; /* size of dump device in blocks */ 579 int dumpblks; /* size of dump image in blocks */ 580 int (*getsize)__P((dev_t)); 581 582 if (dumpdev == NODEV) 583 return; 584 585 bdev = bdevsw_lookup(dumpdev); 586 if (bdev == NULL) 587 panic("dumpconf: bad dumpdev=0x%x", dumpdev); 588 getsize = bdev->d_psize; 589 if (getsize == NULL) 590 return; 591 devblks = (*getsize)(dumpdev); 592 if (devblks <= ctod(1)) 593 return; 594 devblks &= ~(ctod(1) - 1); 595 596 /* 597 * Note: savecore expects dumpsize to be the 598 * number of pages AFTER the dump header. 599 */ 600 dumpsize = physmem; /* pages */ 601 602 /* Position dump image near end of space, page aligned. */ 603 dumpblks = ctod(physmem + DUMP_EXTRA); 604 dumplo = devblks - dumpblks; 605 606 /* If it does not fit, truncate it by moving dumplo. */ 607 /* Note: Must force signed comparison. */ 608 if (dumplo < ((long)ctod(1))) { 609 dumplo = ctod(1); 610 dumpsize = dtoc(devblks - dumplo) - DUMP_EXTRA; 611 } 612 } 613 614 /* Note: gdb looks for "dumppcb" in a kernel crash dump. */ 615 struct pcb dumppcb; 616 617 /* 618 * Write a crash dump. The format while in swap is: 619 * kcore_seg_t cpu_hdr; 620 * cpu_kcore_hdr_t cpu_data; 621 * padding (NBPG-sizeof(kcore_seg_t)) 622 * pagemap (2*NBPG) 623 * physical memory... 624 */ 625 void 626 dumpsys() 627 { 628 const struct bdevsw *dsw; 629 kcore_seg_t *kseg_p; 630 cpu_kcore_hdr_t *chdr_p; 631 struct sun3x_kcore_hdr *sh; 632 phys_ram_seg_t *crs_p; 633 char *vaddr; 634 paddr_t paddr; 635 int psize, todo, seg, segsz; 636 daddr_t blkno; 637 int error = 0; 638 639 if (dumpdev == NODEV) 640 return; 641 dsw = bdevsw_lookup(dumpdev); 642 if (dsw == NULL || dsw->d_psize == NULL) 643 return; 644 645 /* 646 * For dumps during autoconfiguration, 647 * if dump device has already configured... 648 */ 649 if (dumpsize == 0) 650 cpu_dumpconf(); 651 if (dumplo <= 0) { 652 printf("\ndump to dev %u,%u not possible\n", major(dumpdev), 653 minor(dumpdev)); 654 return; 655 } 656 savectx(&dumppcb); 657 658 psize = (*(dsw->d_psize))(dumpdev); 659 if (psize == -1) { 660 printf("dump area unavailable\n"); 661 return; 662 } 663 664 printf("\ndumping to dev %u,%u offset %ld\n", major(dumpdev), 665 minor(dumpdev), dumplo); 666 667 /* 668 * Prepare the dump header 669 */ 670 blkno = dumplo; 671 todo = dumpsize; /* pages */ 672 vaddr = (char *)dumppage; 673 memset(vaddr, 0, NBPG); 674 675 /* Set pointers to all three parts. */ 676 kseg_p = (kcore_seg_t *)vaddr; 677 chdr_p = (cpu_kcore_hdr_t *)(kseg_p + 1); 678 sh = &chdr_p->un._sun3x; 679 680 /* Fill in kcore_seg_t part. */ 681 CORE_SETMAGIC(*kseg_p, KCORE_MAGIC, MID_MACHINE, CORE_CPU); 682 kseg_p->c_size = (ctob(DUMP_EXTRA) - sizeof(*kseg_p)); 683 684 /* Fill in cpu_kcore_hdr_t part. */ 685 strncpy(chdr_p->name, kernel_arch, sizeof(chdr_p->name)); 686 chdr_p->page_size = NBPG; 687 chdr_p->kernbase = KERNBASE; 688 689 /* Fill in the sun3x_kcore_hdr part. */ 690 pmap_kcore_hdr(sh); 691 692 /* Write out the dump header. */ 693 error = (*dsw->d_dump)(dumpdev, blkno, vaddr, NBPG); 694 if (error) 695 goto fail; 696 blkno += btodb(NBPG); 697 698 /* 699 * Now dump physical memory. Note that physical memory 700 * might NOT be congiguous, so do it by segments. 701 */ 702 703 vaddr = (char *)vmmap; /* Borrow /dev/mem VA */ 704 705 for (seg = 0; seg < SUN3X_NPHYS_RAM_SEGS; seg++) { 706 crs_p = &sh->ram_segs[seg]; 707 paddr = crs_p->start; 708 segsz = crs_p->size; 709 710 while (todo && (segsz > 0)) { 711 712 /* Print pages left after every 16. */ 713 if ((todo & 0xf) == 0) 714 printf("\r%4d", todo); 715 716 /* Make a temporary mapping for the page. */ 717 pmap_kenter_pa(vmmap, paddr | PMAP_NC, VM_PROT_READ); 718 pmap_update(pmap_kernel()); 719 error = (*dsw->d_dump)(dumpdev, blkno, vaddr, NBPG); 720 pmap_kremove(vmmap, NBPG); 721 pmap_update(pmap_kernel()); 722 if (error) 723 goto fail; 724 paddr += NBPG; 725 segsz -= NBPG; 726 blkno += btodb(NBPG); 727 todo--; 728 } 729 } 730 printf("\rdump succeeded\n"); 731 return; 732 fail: 733 printf(" dump error=%d\n", error); 734 } 735 736 static void 737 initcpu() 738 { 739 /* XXX: Enable RAM parity/ECC checking? */ 740 /* XXX: parityenable(); */ 741 742 #ifdef HAVECACHE 743 cache_enable(); 744 #endif 745 } 746 747 /* straptrap() in trap.c */ 748 749 /* from hp300: badaddr() */ 750 /* peek_byte(), peek_word() moved to bus_subr.c */ 751 752 /* XXX: parityenable() ? */ 753 /* regdump() moved to regdump.c */ 754 755 /* 756 * cpu_exec_aout_makecmds(): 757 * cpu-dependent a.out format hook for execve(). 758 * 759 * Determine if the given exec package refers to something which we 760 * understand and, if so, set up the vmcmds for it. 761 */ 762 int 763 cpu_exec_aout_makecmds(p, epp) 764 struct proc *p; 765 struct exec_package *epp; 766 { 767 return ENOEXEC; 768 } 769